The peeling itself may or may not get better after three soaks in foot light san, the specific situation needs to be analyzed. The use of foot light san foot soak, will make the local fungal infection of the skin cuticle exfoliation, for the lesion of the sole of the foot tissue has a certain therapeutic effect. Peeling is because the salicylic acid and benzoic acid contained in this drug have the effect of keratolytic and exfoliation. Generally speaking, stopping the drug for a week peeling symptoms can be self-recovery. The reason that many patients with foot phototherapy soak their feet after foot peeling seriously, which leads to wear shoes after friction is easy to pain, erosion and other uncomfortable symptoms, serious and may be infected, so foot phototherapy soak after three peeling themselves may not be good. After soaking three times, and stopping the drug for a week if there is no self-recovery, and accompanied by other uncomfortable symptoms, we should go to the hospital for diagnosis and treatment in a timely manner.